Source of file Extension.php
Size: 5,871 Bytes - Last Modified: 2014-03-12T23:21:18+01:00
/home/theseer/Downloads/ZendFramework-2.3.0/library/Zend/Validator/File/Extension.php
123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181182183184185186187188189190191192193194195196197198199200201202203204205206207208209210211212213214215216217218219220 | <?php /** * Zend Framework (http://framework.zend.com/) * * @link http://github.com/zendframework/zf2 for the canonical source repository * @copyright Copyright (c) 2005-2014 Zend Technologies USA Inc. (http://www.zend.com) * @license http://framework.zend.com/license/new-bsd New BSD License */ namespace Zend\Validator\File; use Traversable; use Zend\Stdlib\ArrayUtils; use Zend\Validator\AbstractValidator; use Zend\Validator\Exception; /** * Validator for the file extension of a file */ class Extension extends AbstractValidator { /** * @const string Error constants */ const FALSE_EXTENSION = 'fileExtensionFalse'; const NOT_FOUND = 'fileExtensionNotFound'; /** * @var array Error message templates */ protected $messageTemplates = array( self::FALSE_EXTENSION => "File has an incorrect extension", self::NOT_FOUND => "File is not readable or does not exist", ); /** * Options for this validator * * @var array */ protected $options = array( 'case' => false, // Validate case sensitive 'extension' => '', // List of extensions ); /** * @var array Error message template variables */ protected $messageVariables = array( 'extension' => array('options' => 'extension'), ); /** * Sets validator options * * @param string|array|Traversable $options */ public function __construct($options = null) { if ($options instanceof Traversable) { $options = ArrayUtils::iteratorToArray($options); } $case = null; if (1 < func_num_args()) { $case = func_get_arg(1); } if (is_array($options)) { if (isset($options['case'])) { $case = $options['case']; unset($options['case']); } if (!array_key_exists('extension', $options)) { $options = array('extension' => $options); } } else { $options = array('extension' => $options); } if ($case !== null) { $options['case'] = $case; } parent::__construct($options); } /** * Returns the case option * * @return bool */ public function getCase() { return $this->options['case']; } /** * Sets the case to use * * @param bool $case * @return Extension Provides a fluent interface */ public function setCase($case) { $this->options['case'] = (bool) $case; return $this; } /** * Returns the set file extension * * @return array */ public function getExtension() { $extension = explode(',', $this->options['extension']); return $extension; } /** * Sets the file extensions * * @param string|array $extension The extensions to validate * @return Extension Provides a fluent interface */ public function setExtension($extension) { $this->options['extension'] = null; $this->addExtension($extension); return $this; } /** * Adds the file extensions * * @param string|array $extension The extensions to add for validation * @return Extension Provides a fluent interface */ public function addExtension($extension) { $extensions = $this->getExtension(); if (is_string($extension)) { $extension = explode(',', $extension); } foreach ($extension as $content) { if (empty($content) || !is_string($content)) { continue; } $extensions[] = trim($content); } $extensions = array_unique($extensions); // Sanity check to ensure no empty values foreach ($extensions as $key => $ext) { if (empty($ext)) { unset($extensions[$key]); } } $this->options['extension'] = implode(',', $extensions); return $this; } /** * Returns true if and only if the file extension of $value is included in the * set extension list * * @param string|array $value Real file to check for extension * @param array $file File data from \Zend\File\Transfer\Transfer (optional) * @return bool */ public function isValid($value, $file = null) { if (is_string($value) && is_array($file)) { // Legacy Zend\Transfer API support $filename = $file['name']; $file = $file['tmp_name']; } elseif (is_array($value)) { if (!isset($value['tmp_name']) || !isset($value['name'])) { throw new Exception\InvalidArgumentException( 'Value array must be in $_FILES format' ); } $file = $value['tmp_name']; $filename = $value['name']; } else { $file = $value; $filename = basename($file); } $this->setValue($filename); // Is file readable ? if (empty($file) || false === stream_resolve_include_path($file)) { $this->error(self::NOT_FOUND); return false; } $extension = substr($filename, strrpos($filename, '.') + 1); $extensions = $this->getExtension(); if ($this->getCase() && (in_array($extension, $extensions))) { return true; } elseif (!$this->getCase()) { foreach ($extensions as $ext) { if (strtolower($ext) == strtolower($extension)) { return true; } } } $this->error(self::FALSE_EXTENSION); return false; } } |